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|                                                                            |   | Year Ended December 31, |   |
|---------------------------------------------------------------------------------|--------|-------------------------|--------|
|                                                                            |   | 2010                    |   |   | 2009 |   |   | 2008 |   |   | 2007 |   |   | 2006 |   |
|                                                                            |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Ratio of Earnings to Fixed Charges:                                             |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Earnings                                                                        |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |
|    Net income (loss)                                             |   | $                       | 3,511  |   |   | $ | (13,441 | )  |   | $ | 22,756 |   |   | $ | (5,154 | )  |   | $ | 6,328 |   |
|    Fixed charges excluding unamortized capitalized interest |   |                    | 61,750 |   |   |   | 75,224 |   |   |   | 42,149 |   |   |   | 42,931 |   |   |   | 35,235 |   |
|       Total earnings                              |   | $                       | 65,261 |   |   | $ | 61,783 |   |   | $ | 64,905 |   |   | $ | 37,777 |   |   | $ | 41,563 |   |
|                                                                            |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Fixed charges:                                                                  |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|    Interest expense including capitalized interest               |   | $                       | 59,598 |   |   | $ | 72,882 |   |   | $ | 42,940 |   |   | $ | 41,348 |   |   | $ | 33,822 |   |
| Portion of rental charges deemed to be interest                                 |   |                    | 1,931  |   |   |   | 2,121 |   |   |   | 2,293 |   |   |   | 2,287 |   |   |   | 2,092 |   |
|       Total fixed charges                         |   | $                       | 61,529 |   |   | $ | 75,003 |   |   | $ | 45,233 |   |   | $ | 43,635 |   |   | $ | 35,914 |   |
| Ratio of earnings to fixed charges                                              |   |                    | 1.1    |   |   |   | - |   |   |   | 1.4 |   |   |   | - |   |   |   | 1.2 |   |
|                                                                            |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Deficiency                                                                      |   | $                       | -      |   |   |   | 13,220 |   |   | $ | - |   |   |   | 5,858 |   |   | $ | - |   |
|                                                                            |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                                            |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                                            |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |

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